Temperature regulating apparatus



Oct. 31, 1933. G. E; HULSE TEMPERATURE REGULATING APPARATUS Filed Dec. 26 1929 Patented Oct. 31, 1933 I I UNITED Y PATENT OFFICE j 21,932,408 I TEMPERATURE BEGULATING APPARATUS New Haven, Conn, as'signor to lieatingsz Lighting Company,

New Jersey Application December 26, 1929 v Serial N0. 416,733

34 Claims. (01. ass-n closes the end ofthe tube 22, but leaves open the exhaust tube 30, whereas if it be swung to the in dotted lines, it opens the end 22 and closes the exhaust tube'30. The lower end of the member 32 has a slotted connection with a swinging having its upper end urged 'downwardlyby the slidin rod George E. Hulse,

The Safety Car at corporation of regulation of temperature, and, with regard to its more specific features, to cooling or refrigeration. One of the objects thereof is to provide practical apparatus of the above nature of eflicient and dependable action. Another object is to provide apparatus of the above nature characterized by simplicity of construction and positive operation tension spring 38 connected with a of the parts. Another object is to provideappara- 39. Thus, as this rod 39 slides in its guides 40, ms of the above nature in which the it will, wheninits leftward position as shown in used are effectively controlled and economically the drawing, so positioned spring 38 that it presses employed. Other objects will be in part obvious valve 34 against the port or seat 23. If, however,

and in part pointed out hereinafter. the rod-39 slides toward the right, it will cause the The invention accordingly consists in spring 38, when it passes the axis of the pivot 37, tures of construction, combinations of elements, to snap the parts overirito-tlfe' position shown and arrangements of parts, as will'be exempli- 23and closing port 31. fled in the structure to be hereinafter described shown in full and the scope of the application of which will be lines, the valve 18 is held firmly against its seat indicated in the'following claims. by a spring 28, but when the rod 39 slides a The drawing, in which is shown ficient distance to the possible embodiments of this invention, will grammatic plan.

Referring now to this drawing in detail, there an internal combustion engine adapted to gaseous fuel supplied through the nozzle 11, provision for the entry of air being indicated at 12, and suitable charge-preparatory devices beingprovided at 13.

At 14 is a source of supply of fuel under high pressure connected with a pressure reducing regulator 15 of any desired type, which is adapted to supply to the conduit 16 gaseous fuel under a substantially constant pressure of the desired value. In this conduit 16 is a valve 1'1, and beyond this anautomatic valve 18 controlling the dis- 20 of the conduit;

of tube one of various is a diaby which absence of pressure in cylinder 26 has been assured, and will admit pressure from the fuel inthe conduit 16, if the valve 1'? be open, and this gas under pressure passing through tube will force downwardly the piston 2'1 and move valve "18 into the open. position shownin dotted lines.

Before considering the method of control of rod 39, illustratively shown in'the drawing, it is .to be noted that the engine 10 is directly connectedin driving relation to a dynamo 41, provided with a field. 42, and connected, as by the leads 43 and 44, through. a-switch' 45, with a storage battery 46. This connection depends may benoted that this member is mounted upon a rod 46 adaptedto move so as to bridge a-pairof contacts 4'1, or downwardly to bridge a pair of contacts 48. The lower end of the rod terminates in a piston 49 cylinder 50 and held upwardly by a springv 51 so as norma ly to hold the switch -member' in mid position with both sets of coacting contacts open-.circuited. If, however, gas under pressure be presentin the portion 20 of the supply conduit, it'will pass through a tube 52 to the upper end of the cylinder and force the piston 49 downwardly was to cause switch 45 to bridge thecontacts 48. There will'thus be completed a direct cnnection from the storage battery 46 place, the latter, acting as .a will tm'n over the internal combustion engine 10. a

- Considering now the action of the apparatus thus far described, and the hand valve the member 32 be spring-retracted check valve" and adjusted that it will remain simultaneously subjected on one side to the pressure of the fuel supply and on the other'side to the suction from the turning-over of the engine 10. Leading from the conduit 16 between the valves 1'1 and 18 is a by-pass tube 22 terminating in a seat 23 in the walls of a'chamber 24. Leading from this chamber 24 is a tube 25, which terminates inthe upper end of a cylinder 26 provided with a piston 2'7 normally urged upwardly by the 50 spring 28 and connected, as by-rod 29, withthe valve 18. In the absence of pre ure on the upper side of the piston 2'1,'the spring 28 holds the valve 18 firmly against its seat 19. 1

An exhaust tube 30 leads from-a wall of the chamber 24 adjacent the port 23, and a rocking member 32, pivoted at 33, is provided with a pair of valves 34, and 35, respectively coacting with the ports or valve seats 23 and 31. This swinging valve member is so arranged that in the position p rt 31 in the shown the valve 18 will be opened, as hereinbefore described, and fuel underpressure admitted to the conduit portion 20. Thereupon the switch 45 will shown in full lines, the valve 34 link-36pivoted at 3'1 and ofthe switch member 45, and it x to the dynamo 41, and when this takes in dotted lines,

be closed, as above described, and the engine It will thus be seen that there is provided apturned over by the dynamo 41. The combined paratus in which the various objects of this ineffect of the pressure of the fuel in conduit porvention are accomplished and the advantages tion with the suction caused by the turning hereinbefore noted are attained. Many of the any suitable wellknown means. When this hereinbefore described.

' As many possible embodiments may be made 10 tion 20, due to the flow of gas to the engine, will of the above invention, and as many changes 15 contacts 48 and stops the flow. of current from and not in a limiting sense.

the battery to thedynamo irrespective of the Iclaim: voltage of the latter. The dynamo 41,. then 1. In temperature regulating apparatus, in I driven as a generator, will, when it develops a combination, means adapted to contain amedium 20 means'of the voltagecoil 53, thus leading curcombustion engine, a dynamo operatively conrent through conductor 55 and a voltage solenoid nected thereto and adapted to drive said engine 56. The core 57 of solenoid 56 will then draw and to bedriven thereby, a source of current,

the bridge member 45 upwardly from its mid means in thermal contact with said medium and g action closes a connection between the generator current and thereby start said engine when the 30 but if the member 32 be snapped over into the said medium and return its temperature to said 5 lieve the pressure n the upperside of piston internal m on e g a dy p 40 open and coil 5 6 permitting switch 45 to re ume. said source of current and therebystart said 5 cated at 5 9 a chamber, the interior of which it is act upon said medium and return its temperature 50 sule 62. One end of thi capsule i u ed to. combination, means adapted to contain a me- 55 tends to exceed the maximum desired value, the thermal contact with said medium and adapted snap the rod 39. over. to the right, having referand thereby "startsaid engine when thetemperaence to the drawing, causing the swinging of ture of said medium reaches a predetermined the rocking member 32, the starting of the envaluepand means actuated by current from said 60 g1n e 10, andthe remaining actions above dedynamo adapted upon said engine being started 65 matically indicated'at 67, the efiective cooling means includingan internal com usti n en ine 70 ternal pressure in the cell 6( reaches a predeposed between said supply-and said engine, and

the member 32 into its'full line position and sure reducing means. causing the stopping of the engine, as herein- 5. In mp ra ure r ula in pp ra in 75 before noted. combination, an internal combustion engine,

means adapted to supply gaseous fuel under pressure to said engine, pressure-reducing means interposed between said supply and said engine, means adapted to contain a medium whose temperature is to be governed, means responsive to the temperature of said medium for controlling the flow of gas to said engine, and means driven by said engine adapted upon said engine being started to alter the temperature of said medium.

6. In temperature regulating apparatus, in combination, an internal combustion engine,

means adapted to supply gaseous fuel under pres sure to said engine, pressure-reducing means interposed between said supply and said engine, means adapted to contain a medium whose temperature is to be maintained cool, means responsive to the temperature of said medium adapted to admit said gas to said engine, and cooling means operatively related to said medium and driven from said engine.

7. In temperature regulating apparatus, in refrigerating means for a space including an internal combustion engine, a source of supply of gaseous fuel under pressure, means actuated by the pressure of said fuel adapted to connect said source of supply with said engine, and thermostatic means responsive to the temperature of said space for controlling said connecting means.

8. In temperature regulating apparatus, in combination, an internal combustion engine, means adapted to supply gaseous fuel under pressure to said engine, a dynamo connected with said engine, a source of current, and means actuated by the pressure of said fuel adapted to connect said source of current with said dynamo.

9. In temperature regulating. apparatus, in combination, an internal combustion engine, a fuel supply under pressure for said engine, a dynamo driven from said engine, thermostatic means controlling the starting and stopping of said engine by regulating the pressure of said fuel supply, electrically operated means adapted to vary temperature at a predetermined point, and means adapted to connect said dynamo with said electrically operated means upon the voltage of said dynamo reaching a predetermined value.

10. In temperature regulating apparatus, in combination, an internal combustion engine, means containing a medium whose temperature is to be governed, thermostatic means operatively related to said medium and controlling the starting and stopping of said engine, a dynamo driven from said engine, means operated by current output of said dynamo adapted to affect the temperature of said medium, a storage battery, and means adapted to make a connection between said dynamo and said storage battery when the voltage of said dynamo reaches a predetermined value. I

11. In temperature regulating apparatus, in combination, means adapted to contain a medium whose temperature is to be governed, an internal combustion engine, a dynamo operatively connected thereto and adapted to drive the same and to be driven thereby, a source of current, thermostatic means operatively related to said medium and adapted to connect said dynamo to said source of current and thereby start said engine when the temperature of said medium passes a predetermined value, means comprising a source of supply of gaseous fuel under pressure for said engine, the flow of which to said engine is controlled by said thermostatic means and means actuated by current from said dynamo adapted upon said engine being started to act upon said medium and return its temperature to said value.

12. In temperature regulating apparatus, in combination, means adapted to contain a medium whose temperature is to be governed, an internal combustion engine, a dynamo operatively connected thereto and adapted to drive the same and to be driven thereby, a source of current, thermostatic means operatively related to said medium and adapted to :connect said dynamo to said source of current and thereby start said engine when the temperature of said medium passes a predetermined value, means actuated by current from said .dynamo adapted upon said engine being started and driving said dynamo to act upon said medium and return its temperature to said value, and means adapted upon said engine being started to alter the connection between said dynamo and said source of current.

13. In temperature regulating apparatus, in combination, an internal combustion engine, means adapted to supply gaseous fuel under pressure to said engine, a dynamo connected with said engine, a storage battery, thermostatic means, and means controlled by said thermostatic means and actuated by the pressure of said fuel adapted to control the actuation of said dynamo to start and stop said engine, and means for cooling a space operatively responsive to the starting of said engine.

14. In temperature regulating apparatus, in 1 unit a source of fuel under pressure for said engine, means responsive to the pressure of said fuel for controlling the operation of said engine, and means responsive to the temperature of said space for controlling the action of said fuel pressure on said controlling means.

15. In temperature regulating apparatus, in combination, means forming a space whose temperature is to be regulated, a refrigeration unit for said space, means including an internal combustion engine for actuating an element of said unit, a source of fuel under pressure for said engine, means for'conducting said fuel to said engine, means responsive to the pressure in said conducting means for controlling the actuation of said engine, and temperature responsive means for controlling the flow of fuel into said conducting means.

16. In temperatu e regulating apparatus, in combination, means forming a space whose temperature is to be regulated, a refrigeration unit for said space, means including motive means for driving an element of said refrigeration unit, a

source of fuel under pressure for said motive means, means for controlling the flow of said fuel to said motive means, temperature responsive means for controlling said last mentioned means, and means for actuating said engine responsive to the pressure of said fuel when first conducted to said motive means.

'17. In temperature regulating apparatus, in

combination, means forming a medium whose temperature is to be regulated, means including refrigerating means operatively related to said medium, motive means for an element of said refrigeration unit adapted to operate upon the ap- 1 plication of current thereto, a dynamo'for supplying current to said motive means, an internal combustion engine for driving said dynamo, said dynamo adapted to start said engine upon the application of current thereto, a source of current,

means for controlling the application of said source of current to said dynamo, a source of fuel under pressure for said engine, means for conducting said fuel to said engine, the pressure of said fuel when in said conducting means actuating said controlling means, means responsive to the temperature of said space for regulating the flow of fuel into said conducting means.

18. In temperature regulating apparatus, in combination, means adapted to contain a medium whose temperature is to be governed, an internal combustion engine, dynamo electric means adapt ed to drive said engine for starting and to be driven thereby, a storage battery adapted to supply current to said dynamo electric means and to be charged thereby, means for supplying gaseous fuel to said engine, means deriving energy from said engine and adapted to affect the temperature of said medium, and means responsive to the temparature of said medium for controlling the flow of fuel to said engine and for connecting said storage battery to said dynamo electric means.

19. In temperature regulating apparatus, in combination, means adapted to contain a medium whose temperature is to be governed, an internal combustion engine, dynamo electric means adapted to drive said engine for starting and to be driven thereby, a storage battery adapted to supply current to said dynamo electric means and to be charged thereby, means for supplying gaseous fuel to said engine, means deriving energy from said engine and adapted to affect the temperature of said medium, means responsive to the temperature of said medium for controlling the flow of fuel to said engine, and means responsive to the flow of fuel to said engine for controlling the connection of said storage battery to said dynamo electric means. A

20. In temperature regulating apparatus, in combination, means adapted to contain a medium whose temperature is to be governed, an internal combustion engine, dynamo electric means adapted to drive said engine for starting and to be driven thereby, a storage battery adapted to supply current to said dynamo electric means and to be charged thereby, means for supplying gaseous fuel to said engine, means deriving energy from said engine and adapted to affect the temperature of said medium, means responsive to the temperature of said -medium for controlling the flow of fuel to said engine, a two-way switch, current-limiting means, circuit connections adapted when said switch is in one position to interpose said current-limiting means between the storage battery and said dynamo electric means and when said switch is in its other position to remove said current-limiting means, pressure responsive means for moving said switch into one position, and means controlled by said engine for moving said switch into its other position.

21. In temperature regulating apparatus, in combination, means adapted to contain a medium whose temperature is to be governed, an internal combustion engine, dynamo electric means adapted to drive said engine for starting and to be driven thereby, a storage battery adapted to supply current to said dynamo electric means and to be charged thereby, means for supplying gaseous fuel to said engine, means deriving energy from said engine and adapted to affect the temperature of said medium, means responsive tothe temperature of said medium for controlling the fiow of fuel to said engine, a twoway switch, current-limiting means, circuit connections adapted when said switch is in one position to interpose said current-limiting means between the storage battery and said dynamo electric means and when said switch is in its other position to remove said current-limiting means, means responsive to the actuation of said temperature responsive means for moving said switch into one position, and means functioning after said engine has been started for moving said switch into its other position.

22. In temperature regulating apparatus, in combination, means adapted to contain a medium whose temperature is to be governed, an internal combustion engine, dynamo electric means adapted to drive said engine for starting and to be driven thereby, a storage battery adapted to supply current to said dynamo electric means and to be charged thereby, means for supplying gaseous fuel to said engine, means deriving energy from said engine and adapted to affect the temperature of said medium, means responsive to the temperature of said medium for controlling the flow of fuel to said engine, a twoway switch, current-limiting means, circuit connections adapted when said switch is in one position to interpose said current-limiting means between the storage battery and said dynamo electric means and when said switch is in its other position to remove said current-limiting means, means responsive to the pressure of fuel for moving said switch into one position, and means functioning after said engine has started for moving said switch into its other position.

23. In temperature regulating apparatus, in combination, means adapted to contain a medium whose temperature is to be governed, an internal combustion engine, dynamo electric means adapted to drive said engine for starting and to be driven thereby, a storage battery adapted to supply current to said dynamo electric means and to be charged thereby, means for supplying gaseous fuel to said engine, means deriving energy from said engine and adapted to affect the temperature of said medium, means responsive'to the temperature of said medium for controlling the flow of fuel to said engine, a two-way switch, current-limiting means, circuit connections adapted when said switch is in one position to interpose said current-limiting means between the storage battery and said dynamo electric means and when said switch is in its other position to remove said current-limiting means, means responsive to the actuation of said temperature responsive means for moving said switch into one position, and means responsive to the function of the output of said dynamo electric means for moving said switch into its other position. I

24. In temperature regulating apparatus, in combination, means adapted to contain a medium whose temperature is to be governed, an internal combustion engine, dynamo electric means adapted to drive said'engine for starting and to be driven thereby, a storage battery adapted to supply current to said dynamo elecmotor-driven means to said dynamo electric 15, l

means.

25. In temperature regulating apparatus, in combination, means adapted to contain a medium whose temperature is to be governed, an internal combustion engine, dynamo electric means adapted to drive said engine for starting and to be driven thereby, a storage battery adapted to supply current to said dynamo electric means and to be charged thereby, means for supplying gaseous fuel to said engine, electric-motor-driven means for affecting the temperature of said medium, and means responsive to the pressure of fuel supplied to said engine for first connecting said battery and said dy namo electric means and then connecting the latter to said motor-driven means.

26. In temperature regulating apparatus, in combination, means adapted to contain a medium whose temperature is to be governed, an internal combustion engine, dynamo electric means adapted to drive said engine for starting and to be driven thereby, a storage battery adapted to supply current to said dynamo electric means and to be charged thereby, means for supplying gaseous fuel to said engine, electric-motor-driven means for affecting the temperature of said medium, a resistance, a twoway switch, circuit connections adapted to interpose said resistance between said battery and said dynamo electric means when said switch is in one position and to remove said resistance therefrom when the switch is in another position, means responsive to the actuation of said temperature responsive means for moving said switch into one position, and means responsive to the function of the output of said dynamo electric means for moving said switch into its other position and for connecting said dynamo electric means to said motor-driven means.

27. In temperature regulating apparatus, in combination, means adapted to contain a medium whose temperature is to be governed, an internal combustion engine, electric-motordriven means for affecting the temperature of said medium, dynamo electric means adapted to drive said engine and to be driven thereby, a source of current, and means responsive to the temperature of said medium for first connecting said source to said dynamo electric means, then to disconnect the two after said engine has started, and then to connect said motor-driven means to said dynamo electric means.

28. In temperature regulating apparatus, in combination, means adapted to contain a medium whose temperature is to be governed, an internal combustion engine, electric-motordriven means for affecting the temperature of said medium, dynamo electric means adapted to drive said engine and to be driven thereby, a source of current, means responsive to the temperature of said medium for connecting said source to said dynamo electric means, and means responsive to the functioning of said engine for disconnecting said source from and for connecting said motor-driven means to said dynamo electric means.

29. In temperature regulating apparatus, in combination, means adapted to contain a medium whose temperature is to be governed, an internal combustion engine, electric-motordriven means for affecting the temperature of said medium, dynamo electric means adapted to drive said engine and to be driven thereby, a source of current, means supplying gaseous fuel to said engine, means responsive to the temperature of said medium for controlling the fuel, and means including a means responsive to fuel pressure for. controlling the connection between said source and said dynamo electric means and the connection, between the latter and said motor-driven means.

30. In temperature regulating apparatus, in combination, means adapted to contain a medium whose temperature is to be governed, an internal combustion engine, electric-motor-driven means for affecting the temperature of said medium, dynamo electric means adapted to drive said engine and to be driven thereby, a source of current, means supplying gaseous fuel to said engine, means responsive to the temperature of said medium for controlling the fuel, switching means adapted to control the connection of said source to said dynamo electric means and its subsequent disconnection and for connecting said motordriven means to said dynamo electric means, and means including means responsive to fuel pressure for controlling said switching means.

31. In temperature regulating apparatus, in combination, means adapted to contain a medium whose temperature is to be governed, an internal combustion engine, means deriving energy from the latter for affecting the temperature of said medium, a starting motor for said engine, a source of current, means responsive to the temperature of said medium for controlling the flow of fuel to said engine, and means responsive to the flow of fuel to the engine for controlling the connection of said source of current to said motor.

32. In temperature regulating apparatus, in combination, means containing a medium whose temperature is to be regulated, an internal combustion engine, refrigerating means associated with said first-mentioned means and adapted to derive energy from said engine, a source of gaseous fuel under pressure, a conduit connecting said engine with said source of fuel, a valve in said conduit adapted to control the flow of fuel therethrough, and means responsive to the temperature of said medium for controlling the actuation of said valve.

33. In temperature regulating apparatus, in combination, means containing a medium whose temperature isto be regulated, an internal combustion engine, refrigerating means associated with said first-mentioned means and adapted to derive energy from said engine, a source of gaseous fuel under pressure, a conduit connecting said engine with said source of fuel, a valve in said conduit adapted to control the flow of fuel therethrough, a thermostatic device in thermal contact with said, medium, and means operatively associated with said thermostatic device for controlling the action of said valve.

34. In temperature regulating apparatus, in combination, a space whose temperature is to be regulated, an internal combustion engine, refrigeration apparatus for affectingthe temperature of said space and adapted to derive motive power from said engine, a starting motor for said engine, a source of power for said starting motor,

a source of fuel under pressure for said engine,-

conduit means connecting said source of fuel with said engine, a valve associated with said conduit means and adapted to control the flow of fuel therethrough, and means responsive to the temperature of said space for controlling the operation of said starting motor power and said valve.

GEORGE E. HULSE. 

